180357044 has 54 divisors (see below), whose sum is σ = 387648450. Its totient is φ = 73198944.

The previous prime is 180357031. The next prime is 180357049. The reversal of 180357044 is 440753081.

It can be written as a sum of positive squares in only one way, i.e., 176890000 + 3467044 = 13300^2 + 1862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 180357044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180357049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 69482 + ... + 72030.

It is an arithmetic number, because the mean of its divisors is an integer number (7178675).

Almost surely, 2^180357044 is an apocalyptic number.

180357044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180357044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193824225).

180357044 is an abundant number, since it is smaller than the sum of its proper divisors (207291406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180357044 is a wasteful number, since it uses less digits than its factorization.

180357044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605 (or 2577 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 180357044 is about 13429.7075172917. The cubic root of 180357044 is about 564.9946943924.

The spelling of 180357044 in words is "one hundred eighty million, three hundred fifty-seven thousand, forty-four".